LONG-PERIOD SEISMOGRAPH DEVELOPMENT

Abstract

Development of the long-period triaxial seismometer and laboratory testing of its characteristics is essentially complete. Manufacturing changes in the mass-lock and period-adjust mechanisms are required before they can be assembled on the seismometer for laboratory and field tests of the instrument. Shake-table frequency response, the effect of temperature changes on mass position, and the effect of instrument tilt on the mass position and free period are reported.

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Document Details

Document Type
Technical Report
Publication Date
Aug 28, 1967
Accession Number
AD0820868

Entities

People

  • B. M. Kirkpatrick
  • David B. Andrew

Organizations

  • Geotech Instruments (United States)

Tags

DTIC Thesaurus Topics

  • Air Force
  • Boreholes
  • Buildings And Structures
  • Climate Change
  • Communication Equipment
  • Contracts
  • Elements
  • Field Tests
  • Frequency
  • Frequency Response
  • Laboratory Tests
  • Leveling
  • Magnetic Flux
  • Manufacturing
  • Measurement
  • Measuring Instruments
  • Seismometers

Readers

  • Fluid Dynamics.
  • Seismology